4-(Piperazin-1-yl)-1lambda6-thiane-1,1-dione dihydrochloride → 2-(4-{(4S,5R)-4,5-Bis-(4-chloro-phenyl)-1-[4-(1,1-dioxo-tetrahydro-2H-thiopyran-4-yl)-piperazine-1-carbonyl]-4,5-dimethyl-4,5-dihydro-1H-imidazol-2-yl}-3-ethoxy-phenyl)-2-methyl-propionitrile

Participants

Reaction Steps

In a manner analogous to the method described in example 5, rac-(4S*,5R*)-4,5-bis-(4-chloro-phenyl)-2-[4-(cyano-dimethyl-methyl)-2-ethoxy-phenyl]-4,5-dimethyl-4,5-dihydro-imidazole-1-carbonyl chloride was reacted with 1-(1,1-dioxo-tetrahydro-2H-thiopyran-4-yl)-piperazine dihydrochloride to give the title compound as a racemic mixture. The enantiomers were then separated by supercritical fluid chromatography (Berger Instrument Multi-Gram II, Daicel ChiralPak OD-H 3×25 cm, 35° C. at 100 bar, eluting with 35% methanol in carbon dioxide). LR-MS: 749.63 [(M+H)+]

Provenance & Evidence